220220220 has 48 divisors (see below), whose sum is σ = 672674688. Its totient is φ = 53386560.

The previous prime is 220220219. The next prime is 220220233. The reversal of 220220220 is 22022022.

It is a Harshad number since it is a multiple of its sum of digits (12).

220220220 is a modest number, since divided by 220220 gives 220 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 220220196 and 220220205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166174 + ... + 167493.

It is an arithmetic number, because the mean of its divisors is an integer number (14014056).

Almost surely, 2^220220220 is an apocalyptic number.

220220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220220220 is an abundant number, since it is smaller than the sum of its proper divisors (452454468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220220220 is a wasteful number, since it uses less digits than its factorization.

220220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333690 (or 333688 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 220220220 is about 14839.8187320466. The cubic root of 220220220 is about 603.8824347588.

Adding to 220220220 its reverse (22022022), we get a palindrome (242242242).

It can be divided in two parts, 2202 and 20220, that added together give a palindrome (22422).

The spelling of 220220220 in words is "two hundred twenty million, two hundred twenty thousand, two hundred twenty".